If you follow celebrity news, you know actor Bill Murray is liable to pop up just about anywhere. In fact there's a documentary about this very subject which will be released near the end of October. So it's no surprise he showed up at the Grand Ole Opry this past Tuesday night. 

Murray, looking very normal, as he always does, joined John Prine and the SteelDrivers onstage for a rendition of Prine's most famous tune. Watch.

The Bill Murray Stories: Life Lessons Learned from a Mythical Man will hit theaters on October 25th, here's the trailer.

I suspect now that his son Luke is an assistant coach for the Men's Basketball team at Louisville, he may pop up more than ever in the area.